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Unanswered: DB2 question

Which of the following occurs if an application ends abnormally during an active unit of work?
A 、Current unit of work moves to pending state
B、Current unit of work remains active
C、Current unit of work is committed
D、Current unit of work is rolled back
answer is D or A ?
Thanks any help would be great !

This is basic stuff for transaction management (not only for database systems). Since you are preparing for a DB2 certification, I recommend that you learn a bit about transaction handling in general and DB2 in particular.